Car-wheel.



. Patented sep'Lfz, |902.

E. s. JENmNas.

C A B W H E E L.

(Application l'd Kay 5, 1902.)

(No Model.)

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@bungs UNITED STATES PATENT` OFFICE.

EBENEZER S. JENNINGS, OF ATHENS, OHIO, ASSIGNOR TO ATHENS FOUNDRY tMACHINE CO., OF ATHENS, OHIO.

CAR-WH EEL.

SPECIFICATION forming part of Letters'ratent N o. 708,047, datedSeptember 2, 1902.

Application filed May 5, 1902. Serial No. 106,051. (No model.) i

To all wwm it may corn/erical Be it known that I, EEENEZER S. JENNINGS,

a citizen of the United States, residing at Athens, inthe county ofAthens and State of Ohio, have invented certain newfand usefulImprovements in Oar-Wheels; and I do hereby declare the following to bea full, clear, and exact description of the invention, suchas willenable others skilled in the art to which it appertains to make and usethe same.

This invention relates to improvements in metal wheels for `cars and thelike and aims to provide novel features of construction, which will behereinafter more fully set forth and finally claimed.

The wheel is of such form that it may be made in one casting andobviates the necessity of using many objectionable parts which must bemanufactured separately, thereby causing heavy additional expense, aswill be readily understood lby those versed in the art to which saidinvention appertains.

For a full description/of th'einvention and the merits thereof and alsoto acquire a knowledge of the details of construction of the means foreffecting the result,'reference is to be had to the followingdescription and drawings hereto attached'.

While the essential and characteristic features of the invention aresusceptible of modification, still the preferred embodiment of theinvention is illustrated in the accompanying drawings, in Which- Figure1 is a side elevation of a car-wheel embodying the essential features ofthe invention. Fig. 2 is a sectional View on the line X X of Fig. l.Fig. 3 is a section on the line Y Y of Fig. 2. Fig. 4 is a detailperspective struction, being hanged, as at 4, after the usual manner toprevent the wheel from climbing the track and consequent derailing ofthe car. The spokes 2 are disposed tangentially between the rim and huband are preferably curved, so that upon removing the wheel fromthe moldand upon cooling the spokes will contract in the same direction, therebyrelieving the rim or tread from the strain usually resulting during theaforesaid cooling. v Upon'contraction of the spokes they hub is given anapproximately rotatory movement, the pressure being in a uniformdirection, as will be readily comprehended.

The hub 3 is of peculiar formation, consisting of the inner and outershells 4a and 5,

the outer end of the outer shell 5 extending somewhat beyond thecorresponding end of the inner shell. Theinner end portions of the saidshells are joined, and the annular space 6 between the shellsis utilizedas an oil-chamber, the oil being retained within the chamber by havingthe outer end portion thereof inclosed ,by the wall 7, cast onto theouter shell of the said chamber. y The wall 7 has the oil-hole 8centrally disposed therein, this hole being outwardly dared to preventinjury to the nozzle-,of the oil-can upon introduction of the sametherein and to facititate the oiling.

Disposed betweenthe shells 4 and 5 of the hub and preferably at theouter end of the inner shell are the braces 9, which are adapted tosupport the Walls of theshells. These braces9 may be of any numberdesired and are also cast with the wheel. `They are of specialconstruction, however, being of approximately T shape to lend strengthand at the same time lightness, no unnecessary amount of metal beingemployed. This construction also allows of an increased space within theabove-mentioned oil-chamber, this being of ymuch advantage, since itobviates constant replenishin g of the oil-supply within the chamber.

To supply the oil to the axle, the inner or wearing surface of the innershell 4. is spirally grooved, the terminations'of the said groove'(designated at 1 0 in the drawings) leading into the oil-chamber throughopenings through the shell. This oil-groove is formed spirally toprevent the wearing of a shoulder upon the axle, thus allowing equal andproper distribution of the oil over the Wearing-surroo face of the axle.The inner side of the hub portion is counterbored at 11 to enable thecollar upon the axle to it snugly against the hub, aording an accurategage of the wheel and also rendering the same practically dustproof. Acollar 12 is also formed upon the outer end of the inner shell 4 toreceive the wear of the usual Cotter-pin, (not shown,) which isintroduced into the oilchamber through the hole or opening 13, thelatter normally closed by a plug or like means. This plug is Hush withthe inside of the oil-chamber, so that there may be no interference withthe @otter-pin.

The wheel embodies a simplicity of construction which enables it to beeasily and cheaply manufactured and possesses many and Varied advantagesof construction, which will be appreciated by those conversant with thisclass of inventions.

Having thus described the invention, what is claimed as new is- In acar-wheel, a rim, a hub, tangentially disposed and curved spokes betweenthe hub and rim, the hub comprising inner and outer shells joined attheir inner end portions, said shells forming an oil-chamber, braces ofapproximately T form interposed between the inner and outer shells andhaving their head portions disposed at the outer end portion of theinner shell and their shank portions extending horizontally andlongitudinally bracing the shells, a wall closing the outer` and openend of the oil-chamber, said wall being integral with the outer shelland having a tapering oil-hole centrally therethrough, an opening in theouter shell for insertion and extraction of the Cotter-pin, said openingbeing normally closed, there being spirallyformed grooves or channelsprovided upon the wear-surface of the inner shell for the purpose setforth, the whole structure being of integral formation, substantially asset forth.

In testimony whereof I aix my signature in presence of two witnesses.

EBENEZER S. JENNINGS. [11.8.] Witnesses:

HARRY G. STOEDER, J. R. SANDS.

